Abstract
We present a study of and decays using a data set of 430 million lepton pairs, corresponding to an integrated luminosity of , collected with the BABAR detector at the PEP-II asymmetric energy storage rings. We measure branching fractions of and for the and decays, respectively. We find no evidence for and decays and place upper limits on the branching fractions of and at the 90% confidence level.
- Received 2 August 2012
DOI:https://doi.org/10.1103/PhysRevD.86.092013
© 2012 American Physical Society